Inflector helper class

* upstream: (26 commits)
  Bootstrap widget comment typo fix
  Bugfix
  clientOptions and clientEvents
  yii\bootstrap\* another refactioring
  Better naming. Additional newline. Doctype tiny fix.
  MSSQL AR tests.
  MSSQL initial query builder.
  Refinements to MSSQL driver classes.
  jui.effect and jui.position dependencies
  Fixes #145. Reusable cache dependencies.
  jui.widget dependency
  Theme dependencies
  Datepicker language assets dependencies
  JQuery UI bundle assets config
  JQuery UI bundle assets
  Do comments at "yii\console\controllers\AssetController::saveTargets()" has been adjusted.
  "yii\console\controllers\AssetController::getAssetManager()" has been updated enforcing 'basePath' and 'baseUrl' config parameters.
  E_NOTICE at "yii\console\controllers\AssetController::loadBundleDependency()" has been fixed.
  Method "yii\console\controllers\AssetController::loadBundleDependency()" has been improved allowing dection of the circular dependency.
  Unit test for "yii\console\controllers\AssetController" has been adjusted.
  ...

Bootstrap widget comment typo fix

[READY] jQuery UI bundle assets config

[READY] jQuery UI bundle assets

`yii\bootstrap\*` another refactioring

#72 Improve the "asset" command Iteration 2

Initial MSSQL support.

Fixes #145. Reusable cache dependencies.

* upstream/master:
  A little yii\bootstrap classes refactoring

A little yii\bootstrap\* classes refactoring

* upstream:
  Fixes #312. Additional docs on IDN in EmailValidator and UrlValidator.

* upstream: (36 commits)
  bug fix.
  Added composer extension.
  Added psr-0.
  Fixed breaking test.
  Fixed iii include path.
  reorganized the main repo to satisfy PSR-0.
  Fixed bootstrap asset registration issue.
  Widget::$transition removed, bundles depency fixed
  'yii/bootstrap/popover' bundle depency optimization
  Bundle names fixes, base widget fixes, other widgets fixes
  Fixed join query for AR.
  Responsive bundle depency fix
  Bundle names and depency fixes
  YiiBase move all after class definition
  YiiBase
  Reloaded
  Additional bootstrap packages
  New approach
  minor refactoring.
  Uncompressed assets js files for better overall compression
  ...